American football in the United States
Most popular sport in the United States
American football in the United States
American football is a form of gridiron football and the most popular sport in the United States. In the United States, the game is most often referred to as simply "football". Football is played in leagues of different size, age and quality, in all regions of the country. There is no single national governing body for American football in the United States or a continental governing body for North America. There is an international governing body, the International Federation of American Football, or IFAF. The National Football League has the highest revenue and average attendance of any sports league in the world.
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